OneDrive has messed up my game and my mods folder

Hi everyone,

So I recently installed OneDrive to accommodate my ever growing Sims 4 mods folder (that was mistake no.1), and its synced all 3000 files to OneDrive. My game then became unopenable, and I thought it must have something to do with OneDrive as it worked perfectly fine before I installed it. I unlinked onedrive from my PC and my entire mods folder was gone. I managed to find it all again in the onedrive recycle bin, but I cannot for the life of me get the files permanently downloaded back to my PC, they just delete when I unlink OneDrive again.

Has anyone else experienced this? It's driving me insane so I'd really appreciate some support / advice, I didn't expect that my Monday night would consist of me troubleshooting TS4 💀